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Merging bound states in the continuum by harnessing higher-order topological charges

  • 发布时间:2022-07-25
  • 点击次数:
  • 发表刊物:Light: Science & Applications
  • 摘要:Bound states in the continuum (BICs) can confine light with a theoretically infinite Q factor. However, in practical on-chip resonators, scattering loss caused by inevitable fabrication imperfection leads to finite Q factors due to the coupling of BICs with nearby radiative states. Merging multiple BICs can improve the robustness of BICs against fabrication imperfection by improving the Q factors of nearby states over a broad wavevector range. To date, the studies of merging BICs have been limited to fundamental BICs with topological charges ±1. Here we show the unique advantages of ...
  • 论文类型:期刊论文
  • 卷号:11
  • 期号:228
  • 是否译文:
  • 发表时间:2022-07-19
  • 发布期刊链接:https://www.nature.com/articles/s41377-022-00923-4

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